/*
 * Created on Jun 4, 2004
 *
 * To change the template for this generated file go to
 * Window&gt;Preferences&gt;Java&gt;Code Generation&gt;Code and Comments
 */
package org.epic.core.util;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IProjectDescription;
import org.eclipse.core.runtime.CoreException;
import org.epic.perleditor.Logger;

/**
 * @author luelljoc
 * 
 * To change the template for this generated type comment go to
 * Window&gt;Preferences&gt;Java&gt;Code Generation&gt;Code and Comments
 */
public class NatureUtilities {
    public static void addNature(IProject project, String nature) {
        try {
            IProjectDescription description = project.getDescription();
            String[] prevNatures = description.getNatureIds();
            String[] newNatures = new String[prevNatures.length + 1];
            System.arraycopy(prevNatures, 0, newNatures, 0, prevNatures.length);
            newNatures[prevNatures.length] = nature;
            description.setNatureIds(newNatures);
            project.setDescription(description, null);
        } catch (CoreException e) {
            Logger.logException(e);
        }
    }

    public static void removeNature(IProject project, String nature) {
        try {
            IProjectDescription description = project.getDescription();
            String[] prevNatures = description.getNatureIds();

            int found = 0;
            for (int i = 0; i < prevNatures.length; i++) {
                if (prevNatures[i].equals(nature)) {
                    found = i;
                    break;
                }
            }

            if (found != -1) {
                String[] newNatures = new String[prevNatures.length - 1];
                System.arraycopy(prevNatures, 0, newNatures, 0, found);
                System.arraycopy(prevNatures, found+1, newNatures, found, newNatures.length-found);
                description.setNatureIds(newNatures);
                project.setDescription(description, null);
            }
        } catch (CoreException e) {
            Logger.logException(e);
        }
    }
}